swpkt.h

vt6528芯片交换机API函数和文档运行程序

/*
 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
 * All rights reserved.
 *
 * This software is copyrighted by and is the sole property of
 * VIA Networking Technologies, Inc. This software may only be used
 * in accordance with the corresponding license agreement. Any unauthorized
 * use, duplication, transmission, distribution, or disclosure of this
 * software is expressly forbidden.
 *
 * This software is provided by VIA Networking Technologies, Inc. "as is"
 * and any express or implied warranties, including, but not limited to, the
 * implied warranties of merchantability and fitness for a particular purpose
 * are disclaimed. In no event shall VIA Networking Technologies, Inc.
 * be liable for any direct, indirect, incidental, special, exemplary, or
 * consequential damages.
 *
 *
 * File:    swpkt.h
 *
 * Purpose:
 *
 * Author:  Henry Lin
 *
 * Date:    May 05, 2005
 *
 */


#ifndef __SWPKT_H__
#define __SWPKT_H__

#if !defined(__TTYPE_H__)
#include "ttype.h"
#endif




/*---------------------  Export Definitions  ------------------------*/
#define RBUF_BUF_SIZE           1536

#define EPKT_ETH_TYPE_OFST  12          // Ethernet Buffer: Ethernet type offset
#define EPKT_ETH_DATA_OFST  14          // Ethernet Buffer: Ethernet data offset
#define EPKT_VLAN_TAG_OFST  14          // Ethernet Buffer: Vlan tag offset, if tagged packet
#define EPKT_IP_DATA_OFST   34          // Ethernet Buffer: IP data offset
#define EPKT_UDP_DATA_OFST  42          // Ethernet Buffer: UDP data offset
#define EPKT_TCP_DATA_OFST  54          // Ethernet Buffer: TCP data offset

#define HDR_LEN_IP          (EPKT_IP_DATA_OFST - EPKT_ETH_DATA_OFST)
                                        // IP header length, without option field
#define HDR_LEN_UDP         (EPKT_UDP_DATA_OFST - EPKT_IP_DATA_OFST)
                                        // UDP header length
#define HDR_LEN_TCP         (EPKT_TCP_DATA_OFST - EPKT_IP_DATA_OFST)
                                        // TCP header length, without option field
#define __SWITCH_CPUIF_PKT8 0
#define __PKT_PIO           0
#define __PBUS_DMA_2_CHNNL  0

/*---------------------  Export Types  ------------------------------*/
struct tagSRBuf {
    UINT8   pkb_au8Buffer[RBUF_BUF_SIZE];
                                // packet buffer contains incoming packets
    UINT16  pkb_u16BufLen;      // length of packet data

    PUINT8  pu8AppData;         // the pointer points to application data.
    UINT16  u16AppDataOffset;   // the offset which from the top of au8TxBuf[] to pu8AppData point at

    UINT8   pkb_u8SrcPortId;    // source port id
    BOOL    pkb_bTagged;        // if tagged packet?
    UINT16  pkb_u16VID;         // VID, VLAN tag value
    UINT8   pkb_u8Priority;     // tag priority

    // the following fields are used by tx only
    UINT32  pkb_u32TxMbrPrtMsk; // member port mask for tx
    UINT32  pkb_u32TxTagPrtMsk; // tag port mask for tx
};
typedef struct tagSRBuf         SRBuf, *PSRBuf;

struct tagSNetStat {
    UINT32  u32PktRxGood;       // rx good packet
    UINT32  u32PktRxBad;        // rx bad packet

    UINT32  u32PktTxGood;       // tx good packet
    UINT32  u32PktTxBad;        // tx bad packet

    // error counter
    UINT32  u32ErrorRxBufDrop;  // packet dropped bcs rx buffer full
    UINT32  u32ErrorTxBufDrop;  // packet dropped bcs tx buffer full
    UINT32  u32ErrorTxMacDrop;  // tx packet dropped bcs mac busy
    UINT32  u32ErrorTxSize;     // tx packet dropped bcs size too big or too small
};
typedef struct tagSNetStat      SNetStat;

/*---------------------  Export Macros  -----------------------------*/

/*---------------------  Export Classes  ----------------------------*/

/*---------------------  Export Variables  --------------------------*/
extern SNetStat g_NetStat;

/*---------------------  Export Functions  --------------------------*/
void ISR_vRecvPkt(void);
void ISR_vSendPkt(void);

void ISR_vRdPktDmaCompleted(void);
void ISR_vWrPktDmaCompleted(void);

void SWPKT_vDrvOpen(void);
void SWPKT_vDrvClose(void);
void SWPKT_vSetHookFnRx(PFN_HOOK_PV pfnHook);
void SWPKT_vGetMacAddress(UINT8* pu8MacAddr);
void SWPKT_vSetMacAddress(UINT8* pu8MacAddr);
BOOL SWPKT_bRecvPkt(SRBuf* pPktBuf);
BOOL SWPKT_bSendPkt(SRBuf* pPktBuf);

#endif /* __SWPKT_H__ */